|A rock containing the mass of resources consumed by the world in a year would be more than a mile wide. If that mass impacted Earth as an asteroid, it would have an explosive energy of more than 100 gigatons.|
|The maximum number of people that can be sustained by Earth's ecological resources is approximately 24^7, while the maximum number of hours in a week is 24*7.|
|A minimum breeding population of 200 people needed for settlement has one and two-thirds levels of community.|
|If everyone in the world consumed as much as the average United States citizen, resources would run out in 20 years.|
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